#423172
Closest named color: Dark Slate Blue (#483D8B). oklch(36.8% 0.108 292.3), rgb(66, 49, 114).
Aa
White text reads best on this color (10.97:1).
About this color
#423172 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.108 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.051 away. White text reads best on it, at 10.97:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #423172 |
| RGB | rgb(66, 49, 114) |
| HSL | hsl(256, 40%, 32%) |
| OKLCH | oklch(36.8% 0.108 292.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #423172 | 10.97:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #423172 | 1.91:1 | Fails | Lc 8.7 | Not readable |
| #423172 text on white | 10.97:1 | AAA | Lc 95.2 | Preferred for body text |
| #423172 text on black | 1.91:1 | Fails | Lc -7.5 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C1B8F1
oklch(81% 0.08 291.7)
-
Step 400
400
#A390EA
oklch(70.6% 0.13 292.4)
-
Step 500
500
#8E72E3
oklch(63.1% 0.165 292.4)
-
Step 600
600
#7958D1
oklch(55.6% 0.179 292.2)
-
Step 700
700
#6647B5
oklch(49.1% 0.166 292.1)
-
Step 800
800
#533B93
oklch(42.7% 0.139 292.1)
-
Step 900
900 (this color)
#423172
oklch(36.8% 0.108 292.3)
-
Step 950
950
#281F44
oklch(27% 0.067 292.5)
#423172 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #123D74 | 0.066 |
| Deuteranopia (no green cones) | #163B71 | 0.063 |
| Tritanopia (no blue cones) | #353F4C | 0.088 |
| Achromatopsia (no color) | #3C3C3C | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423172
#423172
oklch(36.8% 0.108 292.3)
- #404300
#404300
oklch(36.8% 0.082 112.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #423172, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Blueberry #464196 ΔE 0.070
- Twilight Blue #0A437A ΔE 0.074
- Prussian Blue #1D3557 ΔE 0.076
- Marine Blue #01386A ΔE 0.077
- Indigo #4B0082 ΔE 0.080
- Cobalt #1E488F ΔE 0.082
- Royal Purple #4B006E ΔE 0.083
Use #423172 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.